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प्रश्न
What are anionic detergents? Give an example ?
उत्तर
Anionic detergents: The detergents are sodium salts of sulphonated long chain alcohols or hydrocarbons.
Anionic detergents are of two types:
1. Sodium alkyl sulphates: Sodium lauryl sulphate (C11H23CH2OSO3−Na+) and sodium stearyl sulphate (C17H35CH2OSO3−Na+).
2. Sodium alkylbenzenesulphonates: Sodium 4-(1-dodecy) benzenesulphonate (SDS)
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\[\ce{CH3(CH2)10CH2OS\overset{-}{O}3\overset{+}{N}a}\]
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| Column I | Column II |
| (i) \[\ce{CH3(CH2)16COO(CH2CH2O) nCH2CH2OH}\] | (a) Cationic detergent |
| (ii) \[\ce{C17H35COO- Na+}\] | (b) Anionic detergent |
| (iii) \[\ce{CH3-(CH2)10CH2SO3- Na+}\] | (c) Nonionic detergent |
|
(iv) |
(d) Soap |
